Analysis

  • max time kernel
    141s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-01-2024 08:18

General

  • Target

    6ccf11aecc3b829698cdf1972f5d8732.dll

  • Size

    1.2MB

  • MD5

    6ccf11aecc3b829698cdf1972f5d8732

  • SHA1

    983f34b013186bdb199692022f5f1b84db37765e

  • SHA256

    dbcc44b0fc980a62f0d950b32634d5d2d03785a0e7b7659cc3f2bf220d6c3f10

  • SHA512

    8b723631a08aafcb4ff20d1460d7740ca5ab2dc7c97528e986201b35bef542fe34061748b984cb4cfeb0f56e36a4362b55cc66e4ca4f065198295b42f671fa83

  • SSDEEP

    12288:6yWeahQ/LWnzkXz5HYrniajhuSlHJzJBlPXXo/6aNdCaBSPZC1XZV72BZ:HWeaZzqY7dhBjz/lfo/FIyXv72BZ

Malware Config

Signatures

  • Bazar Loader

    Detected loader normally used to deploy BazarBackdoor malware.

  • Bazar/Team9 Loader payload 3 IoCs
  • Blocklisted process makes network request 14 IoCs
  • Tries to connect to .bazar domain 4 IoCs

    Attempts to lookup or connect to a .bazar domain, used by BazarBackdoor, Trickbot, and potentially others.

  • Unexpected DNS network traffic destination 4 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\6ccf11aecc3b829698cdf1972f5d8732.dll,#1
    1⤵
    • Blocklisted process makes network request
    PID:4308

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/4308-0-0x00000275DB1E0000-0x00000275DB21C000-memory.dmp

    Filesize

    240KB

  • memory/4308-1-0x00007FFE9BF80000-0x00007FFE9C101000-memory.dmp

    Filesize

    1.5MB

  • memory/4308-3-0x00000275DB1E0000-0x00000275DB21C000-memory.dmp

    Filesize

    240KB